AMD Radeon RX 8800 XT vs NVIDIA GeForce RTX 4090 Max-Q
GPU · Specs Compare
Graphics Card
Release Date
Unknown
Jan 2023
Generation
Navi IV(RX 8000)
GeForce 40 Mobile
Type
Desktop
Mobile
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1295 MHz
930 MHz
Boost Clock
2430 MHz
1455 MHz
Memory Clock
2438 MHz
1750 MHz
Memory
Memory Size
16GB
16GB
Memory Type
GDDR6
GDDR6
Memory Bus
256bit
256bit
Bandwidth
624.1GB/s
448.0GB/s
Render Config
Compute Units
64
—
Shading Units
4096
9728
TMUs
256
304
ROPs
96
112
RT Cores
64
76
L1 Cache
128 KB per Array
128 KB (per SM)
L2 Cache
4 MB
64 MB
L3 Cache
64 MB
—
SM Count
—
76
Tensor Cores
—
304
Theoretical Performance
Pixel Rate
233.3 GPixel/s
163.0 GPixel/s
Texture Rate
622.1 GTexel/s
442.3 GTexel/s
FP16 (half)
39.81 TFLOPS
28.31 TFLOPS
FP32 (float)
19.91 TFLOPS
28.31 TFLOPS
FP64 (double)
622.1 GFLOPS
442.3 GFLOPS
Graphics Processor
GPU Name
Navi 48
AD103
GPU Variant
Navi 48 XT
GN21-X11
Architecture
RDNA 4.0
Ada Lovelace
Foundry
TSMC
TSMC
Process Size
4 nm
4 nm
Transistors
Unknown
45.9 billion
Die Size
Unknown
379 mm²
Board Design
TDP
220W
80W
Suggested PSU
550 W
—
Outputs
1x HDMI 2.1a3x DisplayPort 2.1
Portable Device Dependent
Power Connectors
2x 8-pin
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.2
3.0
Vulkan
1.3
1.3
Shader Model
6.8
6.7
CUDA
—
8.9
▲ Specs Compare
Data sourced from official specifications and benchmark tests.